I don't think Ms. Martinchek has ever worked on an election campaign. And with Covid-19, new strategies have to be employed that prevent Mr. Biden from getting out there. From my understanding, Mr. Biden has been spending hours each day in online interviews.
And yes, sometimes it is good political strategy to let the other side shoot itself it the foot--and the leg--and the kneecap. Mr. Biden's lower profile may just be a deliberate decision of his campaign team.
The D ground team will come into place in September. Each campaign office only needs about a few experienced people to manage it and several hundred enthusiast volunteers to get out there and canvass.
These canvassers will have a bigger effect on the final result than all the anti-Trump contributors on Medium.
If you really want to remove Mr. Trump, get out there and canvass for the D's.