How and, more importantly, why would anyone compare the two? Times are vastly different between now and then.
For one, cord cutting wasn't a thing when Netflix started offering their streaming service back in early 2007. Actually, cable tv subscribers were still in growth mode during that period.
Secondly, broadband service in the U.S. wasn't as widespread as it is now. The
average down speed in 2007 was 1.9 Mbps. Good luck streaming with that (If I remember correctly, the best speed I was able to get back then was about 1 Mbps on AT&T DSL). Even
in 2009 the average (advertised, not actual) down speed was 7-8 Mbps. People (myself included) can now get 1,000 Mbps down. Plus, you didn't have 4G LTE and smartphones back then which is how most of the younger generation are consuming their media now (Verizon didn't launch their 4G LTE service until
Dec. 5, 2010 in a few cities).
Third, Netflix didn't start to offer their streaming service to other countries like Canada until late 2010, and to countries like Mexico, Chile, Argentina, Brazil, etc. until late 2011. Disney Plus was available in the U.S., Canada, Netherlands, Australia, New Zealand, and Puerto Rico during the 1st week of launch.
Fourth, Netflix's streaming content library at launch was slim compared to what Disney Plus had to offer. You need content to attract subscribers. Netflix didn't have any original content (House of Cards) until early 2013... 6 years later. Netflix was still generating most of their revenue through their DVD-by-mail service during those early days.
It's like when Disney boasts that a certain movie made over $1 billion. Not only are there more people in the world now, but ticket prices are also higher than they were 10-20 years ago and there's now greater access to foreign markets.
Oh, and we also had this thing called a great recession right around that time too. People tend to drop non-essential services when money is tight.