make the mat was adjusted accordingly

Making the plans hard to get wouldn't be a bad idea as long as the cooldown to make the mat was adjusted accordingly. It would need to be a bit more then the amount of time that one piece of gear from Raiding is expected to take. For example if you're expected to take 1 week for one piece of gear the crafted alternative wow gold farming should take somewhere around 2 weeks to make. That way if you can't get a piece of gear off of a Raid you can make one to fill in for it after you've tried twice.

It would take double the expected time of Raid gearing while still allowing for RNG to grant you more then the expected. This way you'd have to focus on one character at a time to gear up and by the time you either got a full Raid set or a full crafted set (barring freak weeks where you actually get multiple pieces that aren't duplicates) if they kept to the same time schedule as this expansion you'd only be able to make one or two pieces for your alts.