Eh, I have no issues with this. I'm going to get serious here, so apologies for bringing down the mood. I'll try to make the last paragraph a good summary if you want to skip over everything in between. This is also going to meander a bit, but context is important.
I was mechanically inept for many, many years, because important people in my life would look down on me when I didn't know how to do things or when I used the wrong tools for a job, regardless of whether or not I had been taught how to do that job. Those same people also expected me to be tough, coordinated, and just a manly man, which really isn't who I am. Growing up, I had some really terrible things happen around me which ultimately meant that I really wanted to live up to these expectations and prove myself to these people. Being looked down on, cursed out, and excluded from proving myself was really hurtful and hard to deal with. I didn't have much success.
Ultimately, I decided that if I just didn't try, I wouldn't get looked down on or beat up on myself, even though I've had a lifelong fascination with metalworking and precision. Not trying meant that my mechanical skills never got exercised. All of these crappy feelings made it really hard to focus on these skills I wanted to learn. Not being able to focus meant that I would fail to realize things that were painfully obvious to those around me, which just reinforced this belief that I sucked and should not try.
It always took a lot of effort for me to build up the courage to go try something like the class you posted, and built-up courage is easily pushed over. I can clearly imagine myself at 20, going to a class wearing gloves that were too thin because the mailer said "leather gloves," without further elaboration, and then feeling so ashamed at finding out my mistake that I never went again and just gave up the whole thing. Something very similar happened on several occasions, including one very nasty period of time that led to me completely dropping out of community college, where I was taking a welding class. That last one wasn't due to something as trivial as gloves, but the root cause was the same, I just felt like too much of an incompetent screw-up to keep going.
I've spent 6 years and thousands of dollars dealing with this stuff in therapy and I'm no longer shackled by this particular problem, but man, it really sucked. I know that my feelings and problems are my own, and that nobody else is obligated to care even one whit. With that being said, I think that something as simple as these two pieces of paper with unambiguous instructions would have really helped me to feel more comfortable and confident when I was younger. A little bit of that pressure I felt would have let off because I would know that the hood I was bringing was going to work, meaning I'd be able to focus on the class instead of stressing out about how I was going to screw up.
So after all of that, here's why I have no issues with this. There are a lot of folks out there who would like to get into welding or machining. If these two pieces of paper help even one extra person to get the right stuff and have a great time at their first class, then I feel like they're absolutely worth it. I always see comments asking why younger people (which I'm one of, according to that "How old are you" thread) aren't getting into the trades. I would say that for a lot of us, it's because we don't have the basic foundational knowledge that we need to start. There are also those (including me) that had extra difficulties thrown in their way. Those extra instructions aren't dumbing things down, they're just lowering the barrier to entry, which is nothing but great in my mind.
EDIT: Wow, that turned out to be a LOT longer than I had originally intended. Sorry for that, and sorry for the "sad story bomb," but I really wanted to make it clear why I think things like this are good and should be the norm.