Indeed. People expect you to mash through everything. It's reasonable to punish unsafe strings and whiff punish using a grab. There is nothing wrong with grabbing players, you have every right to do that.
Ahh people who hate throws. Reminds me of the SC online community. Always complaining about getting grabbed, when its practically the easiest game to get out of grabs. Ring outs too. I remember them complaining a lot about that too.