Pawn Offer in Middlegame - A Weapon of World Champions

100 years ago in Duesseldorf/Germany took place the World Championship between Germans Lasker and Tarrasch.

In the second game Tarrasch came out of the opening and early middlegame with a superior position. So Lasker tried to confuse him a little bit with a half incorrect combination. At the end of that Tarrasch had the possibility to gain a pawn:

Yesterday almost 100 hundred year later started again a worldchampionship in Germany. And again a worldchampion, the present one, offered in middlegame a pawn for getting counterplay in the c-file. Most of you have seen that meanwhile:

So when worldchampions use that weapon pawnoffer in middlegame it should be a good argument for us, too! Or?