I agree with all these statements, however MANY of the explanations for how The Flash does things and how his powers work (such as the protective aura, etc) existed looooong before Mark Waid introduced the Speed Force concept as the Deus Ex Machina for any Flash story in the 90s. The concept was actually only introduced as a way for the writer (namely Waid) to have Wally "one up" Barry as whoever was headlining the current book needed to be the most "superior" Flash, and since Wally on his own Post Crisis and until the mid 90s supposedly could only run at about 700 mph to be kept more "believable", DC needed to change that because that was a very, very far cry from how powerful the Barry Allen Flash was written throughout his career for 30 years pre crisis, but unlike Wally and the Speed Force concept, everything Barry did in those stories he did with his brain and his feats were explained through some demonstration of science, while the Speed Force concept is more comparable to "magic" as no one really has any psuedo-scientific explanation for it.
Anyway, since the mid 90s the Speed Force has been used to make just about anyone who has headlined the Flash book as the "main Flash" the "most powerful"; Wally in the mid-late 90s, Bart when he was Flash for a little bit, and finally Barry Allen back in '08. I think it is a gimmicky, somewhat "lazy", easy writing ploy myself and never cared for it much but I do believe it could work well if done right and can have a proper place in a Flash story depending on how they use it (like I liked the usage it got in Flash: Rebirth, I though Geoff Johns used it in a way that accentuated a lot of things about The Flash(es) and made sense of some things that didn't really make sense before, that to me is a good example of how it can be used).