Yes, because that person is a) being a jerk, but also (and much more importantly, by your stated standards) b) giving awful advice.
I mentioned this before and I'll reiterate here: telling someone to change characters is 100% useless advice. There's a few reasons (apologies to Gotchaye whose content I'm partially lifting here):
- In many cases, people playing hero or character based games are going to learn primarily how to play one particular character, with any cross-training happening later after they've already built up some skill. Regardless of ideal composition choices, someone switching from a character they know to one they've never touched before will play worse.
- Alternately, maybe it's a character someone's in the process of learning. Telling them to switch isn't going to help their actual goal and it also won't meaningfully improve their ability to get better faster.
- In most cases besides the most extreme, any composition issue is going to sit alongside other areas that could simply be improved by different play or strategy. Whoever you're telling to switch could probably also improve the team's results just by playing Genji differently or with more skill, and maybe more efficiently if there are obvious things they could change about their performance.
- In any composition issue, there's going to be multiple ways to change things to improve overall team setup, and people are (rightfully) going to resist being picked out to unilaterally change rather than a discussion happening about how everyone can contribute to addressing the issue.
- Finally, maybe someone just wants to play a character because that's who they want to play. Ultimately it's a game and if you're playing with matchmaker groups you ultimately don't have any real responsibility to mess with your own enjoyment just because other people want you to. People who want to seriously work and improve towards greater success can (and should) find teams to play with so everyone has an actual reason to work out issues collectively. If you're playing with randos, you ultimately have already agreed to make the most out of whatever shit sandwich you're served in each given match.
Anyone who recognizes that this bad advice is bad is going to ignore it because, shock, it's
bad advice. They're also going to ignore the next thing the same person says because they
already lead off giving obviously bad advice. In fact, it's actually
more important to ignore this if you're actually trying to improve since following bad advice will actively detract from your ability to develop your skills, whereas if you don't give a shit about getting better you might well just listen to people's dumb suggestions to get them to move on. Being unable to recognize this dynamic makes basically any observation about how people "react to criticism" untrustworthy since you aren't even starting from a point of effectively distinguishing good advice from bad.