Not at all. Cunard and P&O have been doing them for years and they’re immensely popular. Virgin are also back in Portsmouth next year. And away from cruising Easyjet, Ryanair and Centerparcs have essentially built their entire businesses on short breaks.
True, the more ‘traditional’, older cruisers tend to prefer longer itineraries. But shorter cruises are very popular with working families, groups of friends and younger couples who are more pressed for time and might just want a long weekend. And that’s a huge market, much of which is new to cruising.