Earlier quoted context omitted.
Or we could not police people's language. "So" is a way to start sentences; like anything else, it can be overused. Just like "like", etc. There's a good podcast episode from John Mcwhorter on this "So" phenomenon. [0] TL;DL It has some interesting applications (including functioning as a discourse marker), and isn't going away anytime soon. [0]: https://slate.com/human-interest/2018/10/john-mcwhorter-on-s...
Like it or not, perception matters. Take accents as a similar and more obvious case: rural accents will often cause you to be looked down on, and so some find it extremely valuable to deliberately adjust their accent (in some lines of work, it’s pretty much essential to hone a certain accent). So it’s often worth at least contemplating such feedback, if you care about being taken seriously. (But don’t get too hung up…
Engineers (at least in my locality in California) tend to prefer direct, casual language and to a great degree even have a grudge against overuse of formal language and formalities. We love things that speak to us in our day to day language.
I suppose if you're pitching a product to lawyers, then sure, bring on the notwithstanding hitherto aforementioned gibberish and I'm sure they'll feel right at home thereinafter. :)