I found this bug as well but thought it might be different - In my report I have detailed how I have been able to recreate it
To Recreate : Go into spectator mode and try to break a block. If it isnt breaking, switch to creative and replace the block. Then go back into spectator and try again.
Thanks !
Its intentional game design so no, not really. If you really want the enchantments, you could play versions 1.14 - 1.14.2 where a bug allowed the protections to overlap, and then update to a later version if you like.