No she isn't. Tomoko has put in a ton of effort into making and keeping friends, she has worked harder than anyone to get over her crippling metal illness-level of social anxiety and some jealous bint comes along and accuses her of being lazy and not earning it just because Tomoko is not appearance-maxing to her standard.
She really didn't. A lot of Tomoko's success comes from people being intrigued by her or her stumbling into a situation that works out for her.
That's not to say that she doesn't work hard at
anything, but even a significant amount of Tomoko working hard comes from people either pushing her to start something or pushing her to not abandon something. Compare with Senpai in Nagatoro: even though he ALSO was extremely lucky at people selecting him for friendship, throughout that series he still puts far more effort into making decisions that counter his crippling anxiety.
She's very lucky, all things considered, and that's not a bad thing, but it does make it understandable why someone would feel angry that a stranger who just sexually harrassed them was seemingly given a free pass because she's female and is supported by an (upon first blush) oddly large friend group. Tomoko's sexual harrassment being treated like a joke by most people doesn't suddenly make it not okay for someone else to actually find it extremely unnerving to be sexually harrassed.