You talk as though play action and the use of a TE to help block is exclusive to the Rams.
In fact it's as much standard operating procedure in an NFL offense as having 5 Olinemen.
Whether it's the least or most sacked QB, these principles are the same, team to team.
In fact, that the Rams operate in 11 personal some 90% of the time even speaks more to the minimum amount of players dedicated to pass blocking.
The Rams sacks are very few for the type of offense they run and the distance the average pass is thrown and the number of passes that are thrown.