I'm not convinced consultant style learning is THAT useful.

I know my AWS, I can be tossed into learning whatever product a client needs. The problem is that AWS is such a varied product that has its individual quirks that might not actually mesh properly with other services.

Sure I can probably deploy completely unfamiliar product fairly quicky, but without owning the product medium-longish term, you have no idea if it was actually properly deployed, meaning whatever you learned probably wasn't the best way to do a thing