This makes no sense to me

Try putting the dipstick tube in the freezer the night before installing it. This will help it fit with less persuasion. Lube the end and install it quickly before it has a chance to warm. Find a piece of tubing that`s just slightly longer and larger than the dip tube. Slide it over the tube and against the tube flange. Tap it in until the flange on the dip tube is flush with the block. If the tube is straight it will go in easy. You can bend it slightly to clear your pump and alternator once it`s installed.