This is getting silly
Ok, I'm all for fair competition and giving the little guy a chance, but competition should be based on everyone having a fair chance, not penalising someone for being good at something.
When Google maps first appeared, I had been using Streetmap for ages, and was a big fan. Google maps worked better. If it hadn't, I'd still be using Streetmap.
Streetmap surely have no right to sue Google because their product wasn't as good? If I opened a restaurant and a year or so later someone else opened a better one down the road that pinched my customers, I wouldn't be able to sue them, I'd have to up my game, and quickly, before my customers left never to return.
Streetmap had a good product. Someone else released a better one. They didn't move quickly enough to salvage the situation, and they lost the business. End of story.