I'm not really worried about it, because we're talking about government priorities. The government has decided to spend in certain areas. So it's a question of public policy and priorities. Taken in isolation, the level of spending is not necessarily something that can or should cause concern. What can give cause for concern is the nature of the services provided, in relation to the sums allocated. Collectively, are we getting value for money? This is a subjective question, and answers vary depending on who you ask.
The other aspect of your question was about financial viability. Compared to the other G7 countries, Canada is in an enviable position, because its debt‑to‑GDP ratio is relatively low, especially compared to the United States. On the other hand, the government has set budget targets. In light of what we've seen over the past few months and recent announcements, the government has increased the risk of not meeting its budget targets.
When the government sets itself budget targets and puts itself at risk of missing them because of conscious decisions, and not because of unforeseen external events, that's worrisome.