What are the theological implications of distributing Communion under one kind only?

When I attended my first Catholic mass some time in November, I noticed that the priest only distributed the Holy Eucharist under the species of bread, not wine. Upon further research, I learned this was due to COVID restrictions. Which brings up a serious question: What are the theological implications of such a change, especially in relation to Christ commanding to consume the Eucharist under the species of both the bread and wine during Mass?