Bundling is one reason who can’t have nice things. Like in my opinion Excel is a lot worse than the others but if customers are thinking about a “suite” they are still going to buy Office to get Word and PowerPoint and can’t save money by switching to a different CSV wrangler or financial analysis tool.
Of course it’s got quirks and unfortunate relics of its long history, but I reach for it willingly, and I can’t say that about the rest of the Office suite.