I use OTG for the usual EU reasons and also because the lag on the video feed is far, far less. A drone with less laggy feed and a better range=more reliable drone.
I know it's not officially supported, but IMO DJI made two huge errors here: first of all, using the 5.8Ghz band which is poorly supported in an entire continent, and also illegal in some countries (such as Israel), and secondly not telling the users why they do not recommend using OTG. The lack of information is maddening.
I fully understand your points, but if you understand it from a marketing standpoint, it’s kind of understandable.
DJI is marketing the Spark as a beginner / non-enthusiast drone for taking selfies, using gesture mode and appealing to people who may not want to drop a grand on their first drone.
These primary use cases are all generally close range. The Spark isn’t marketed to be used beyond visual range and many countries laws expressly forbid flying out of sight.
The 5.8ghz band is shorter range, but is also much less congested. So if you wanted to make a selfie drone that stays within 100 meters of the pilots, it’s a good choice.
As for the band being illegal in Israel, I’m sure DJI did the math and was ok losing whatever sales they would in small countries, when the market for them in larger countries is so big.
I think a lot of people watch YouTube videos of people flying the Spark 4km away and think they should be able to do that too.
If you look at DJI’s intended use for it, I performs quite well under the vast majority of situations even when it’s nerfed in CE mode.
From their perspective, if you want an ultra long range drone that isn’t nerfed by CE rules, etc. they provide that in the Mavic Pro and higher.
If you want a super capable entry level drone that can fly to the end of a football field and back (most people can barely see it that far away) then the Spark is the best option.
I know this is the devil’s advocate view, but if you put emotion aside and look at it from this perspective it becomes easier to understand why DJI operates as they do.