I should not say that I know these matters better than you,it is just that I live some 40 miles from that region

I have a quality (or probably a defect

):I am at an age (60


)that I am always doubting and not easely accepting some truths .
An other point :Montgomery's forces were weakened,because he had left behind units to liberate the French ports ( wrongfully or rightfully,that's another point )
Was it that important,that the approches to Antwerp were cleared some weeks earlier ? Even if that happened,Antwerp was still not usable :the Scheldt was full of mines,the railways were damaged and the Albert canal (from Antwerp to Liege ) was still under German fire ,full of wrecks and the bridges destroyed .
It is possible that Montgomery made a big mistake,but to be sure we should have an answer on 1) how strong were his forces 2) how strong were the Germans
PS :no need to sorry for the 'long ' thread :it was very interesting
cheers