I truly do wonder if LBT as a larger franchise is Universal's budget DVD market cash cow of sorts. Not quite worth it to make new entries or, in my wildest dreams, blu-ray relases, but absolutely worth it to continue producing affordable DVDs of content that's already made. The DVD market is shockingly strong, bigger than blu-rays and 4k blu-rays combined, which is amazing considering that it's a medium that should rightfully be dead and buried. It strikes me that LBT may be a means of taking advantage of that. Low-income families looking for wholesome, but high value (ie, many hours of content for less money) entertainment maybe? I'm speculating here for the large part, but it is fascinating that any new LBT physical media is being released.
LBT has relatively little streaming presence, but almost every major Amazon sale I see has a complete box set of the movies on sale, and now we see this series release. It's an interesting niche that we don't see often in the age of Netflix and Youtube kids content.