Shankara is not against any form of scripture-approved worship/practices. The Shankara Vijaya says that he has prayed in temples, installed deities, etc. The practice of building superstructure temple Gopurams is admitted in the Vedic culture. In similar vein, a mega statue for Shankaracharya would inspire awe in the personality of the Acharya who is regarded as an incarnation of Lord Shiva Himself. Followers of Shankara could view Him as Vishvarupa and such upasana is instructed in the Shvetashvataropanishat:
yasya deve paraa bhaktiH, yathaa deve tathaa gurau
tasyaite kathithaaH hyarthaah prakaashante mahatmanaH
The purport is: For an aspirant who holds the Guru the same way, reverence, he holds Ishwara, the hidden truth of the Upanishads will reveal themselves.
So, all this is in accordance with the Veda, shishTaachaara, sampradaya, etc.
regards
subbu