alot of opinions and differant ways to skin the same cat, too right as well, no 2 people operate a single piece of machinary in the same way, be it cars, bikes, lathes drills...tractors, whatever. All an individual can do is use his common sense and experience.
Training is always a good idea, allowing others experience to advance yours. But at the end of it only you can ride it and take resposibility.
Personaly, i think the bike you have is a wiser buy than you/we realised . Probably the single most dangerous and common problem with bike riding technique is lack of rider confidence entering a corner, selecting turn in speed, selecting corner speed, and the easiest, exit speed. The main issue being trail braking into a corner, usually on the front brake, then, a little unsure how far the bike will lean over with the grip available, and usually in conjunction something unexpected like the corner tightening further, trail brake even more, then feel totally convinced the bike will not turn any tighter, run wide and into the weeds or worse...Or with BMW's thinking, brake too hard in similar situations and loose front grip altogether, all BMW's braking systems are designed to help the rider stay on, keep controle and prevent ham fisted and catastrofic loss of grip. BMW know thier customerd well it seems.
Problem is, it seems to me at least, non of these systems help improve rider confidence in a trail braking wide situation, and from previous posts i know its an issue for you, as it is for the vast majority early on.
As h21 says, training is very worth while, but there's more than one way to train, road craft is vital on the road obviously, but nothing in the world can give a rider more confidence than knowing exactly what his machine is capable of, he can then know what situations he can or cant get into.
Entry speed can be quite breath taking on a bike and there are several drills that can help achieve it, you wont find these in a road training progamme though, not a hope.
Make of it what you wish, examine your riding honestly, be critical, and work on week areas, we all have them. Then you start to realise, you dont need linked brakes and ABS.