For footballing reasons, absolutely. However West Ham weren't going to get close to his Man Utd contract terms, so take football out of it for a second, he'll likely get £4m or so this year for turning up for training and getting the odd minutes here and there, then in June he will be a free...
Vladimír Coufal for £5.4m supposedly on around £30k pw
Craig Dawson on loan, possibly only £2-3m to make that permanent.
Tomáš Souček £15m
David Moyes leading a quiet revolution of how West Ham do things it seems. If they make the Champions League with continued contributions from Lingard...