^And by that he is referring to an elite group of lackwits who believe Wifi is the ultimate gauge of a player's skill and wit and treats every win against any player as a sign that they're better than said player and any loss like the vengeful hand of lag ruining their "perfect" strategy. They are the self proclaimed Heroes of netplay, and they will irritate the hell out of logically minded people.
In an effort to remain on topic however;
It is always a great idea to have sun salutation charged. If your opponent has already spent their double jump, Link is ill equiped to manage a well timed sun until fully landed. Work out the timing and it becomes a free hit as airdodging to the ground incurs the landging lag = getting hit, and using up-b to go over it leaving him horribly unsafe (odds are this one won't happen often however)
If the Link is only spamming long range, find a good distance onstage to charge your sun little by little while avoiding the odd arrow here and there (as this is really the only projectile that goes fullscreen and it needs a lot of startup and can't be repeated quickly.) giving you time to charge. I would also recommend spending enough time in training mode to master the timing on deep breathing. I won both WFT matches I've played punishing a failed breath with dash attack. You may need to sacrifice edgeguard oppurtunities to power it up, but a full power Sun is devastating, and our recovery is not excellent, so treat it like a savings bond. power up now, get better launcher later.
If the Link is going in and playing aggressive, you are a little safer as most of Link's attacks on ground are slow enough to punish on block (minus jab sometimes) his N-air, F-air, and B-air are better, but you can punish F-air if you block it and grab him, B-air will be the hardest to punish unless the Link overcommit's to his jump arc but has low shield damage and stun, so block it and roll to reset your spacing a bit. For N-air you can spotdodge and watch the Link's next action, or block it and roll away. Odds are He can only repeat the same move so many times before you punish him for it, so patience is key against him.