The main claim that "FLOSS ... alternatives ... are sadly not there yet ... for professionals"
Is one that is much more complex than this binary would suggest. It depends on which professionals you mean. Scientists? Wood workers? Glass blowers? Web designers?
Each workflow in each business or industry has it's own assessment of Inkscape as a replacement tool.
But the answer is correct: Invest in programmers please.
@doctormo oh absolutely. I tried handling that in the second toot of that mini-thread. Kinda.
@jlapoutre @inkscape