Yep!!
At some point there's a line were the normal and expected panic and reactions are completely fine and acceptable, specially when dealing with a family member who suffers from depression of suicidal tendencies.
BUT it can happen for parents to go kind of psycho or super intense about it, in a unhealthy way that was originated from their worries but transformed in to an oppressive relationship with their kids, that doesn't help them in anyway.
So yeah, you can totally say "that's not right to do" EVEN if you understand their feelings about the situation.
Your feeling are not wrong and are completely valid BUT that doesn't mean that your actions right, acceptable or healthy :)
The reactions are so intense. Like the mum coming up to him and just yelling " are u ok?!" Like chill no wonder he's on edge.