On another thread (need to track it down eventually, it was posted today in Liturgy and Sacraments, maybe the Music thread) it is quoted that there are allowed variations to rubrics due to local differences. The rubrics are a range of grey areas in real life, not a black and white rule where any minor deviance is a “scandal”.
Remember, the official rubrics were first done by basically a human committee long ago (not sure which exact council), they are not the same (even TLM) from what was done back 300ish or so, other councils have modified them.
The Church is a global spiritual community broken into local parts. There are both interconnectedness and differences between communities from the local (more than one local parish) to the global variances. Love for one another is what really matters in the end. Spirituality is the link between us, either more traditional or modern., Catholic or non-Catholic (or even non-religious). In the end we all want a more unified humanity, as hard as that will be and imperfect the ideal final goal could be (human weakness).
I personally am secure in my Catholic faith that events like these would not shake it, as they are pretty minor in the big picture of life.