To be fair, this was when they were just coming into London and offering crazy bonuses to steal market share from Deliveroo, but still, this isn't controversial - if someone pays you bad wages, don't work for them...
If you can't find work elsewhere, you'd rather work for pennies than for nothing.
You could say the same about any regulation, if you cannot manufacture something at a reasonable price without polluting more than allowed, you need to change your prices or adjust your business model.
This is a very elitist view, as it benefits only high-margin businesses, usually catering to the richest parts of the society.
It just so happens that margins generated by Neiman Marcus, Whole Foods Market, or a white-cloth Michelin-starred restaurant will allow it to survive. Margins generated by a clothing thrift shop, corner bodega or a taco stand - not so much. Scores of businesses in the latter group are shut down, some are exempted (US conveniently does not enforce minimum wage laws on self-employed or family operations), some rely on undocumented labor and cash economy.
Economists who advocate this, meanwhile, find the nest hot topic for conferences and panel discussions: "Food deserts in poor neighborhoods - root causes and possible solutions".