@SunJeong "the progress she did make was being able to answer phone calls quicker and being able to talk to SOME people via phone." she's done a lot more progress than what you just stated, like the time rei (the little girl) stayed with her fo a few weeks arc, making friends with manbagi, etc. not much words were uttered from komi-san's mouth but progress was made because she reached out to these people, few words, more action, it's still the same communication, though maybe you forgot idk. \_( ' - ' )_/
also tadano has been helping komi, just not the obvious "komi-san, practice saying this!" or "komi-san, repeat after me!" no, he's being by her side, so that if she's unsure she can look back at tadano and all the new friends she made to motivate or ensure her that eveything's gonna be okay.