Is the final size of the apk or ios file important?

My Ionic app is nearly completed and has a generated a package size of about 43 MB of which 36 MB is static images and sound files which need to be available offline. I am very comfortable with this and loading times on a real device is only a few seconds. The only problem with this size is getting ionic pro to upload the files (it tends to time out).

So here is my question - what size should an Ionic app be? I ask this because if I look on the app stores the files sizes of other apps are a lot bigger - for example the following app is 144 MB - just to show a boarding pass on your phone.

So why do I see a lot of posts on this forum saying Ionic app files are too large?